scholarly journals Potential use of ash from sugarcane bagasse to produce passion fruit seedlings

2020 ◽  
pp. 408-414
Author(s):  
Henrique Guimarães de Favare ◽  
Sandra da Costa Preisigke ◽  
Leonarda Grillo Neves ◽  
Kelly Lana Araújo ◽  
Milson Evaldo Serafim ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Soil Structure ◽  
Block Design ◽  
Dry Mass ◽  
Passion Fruit ◽  
Randomized Block Design ◽  
The Family ◽  
Set Up ◽  
Physical And Chemical ◽  
Potential Use

The production of good quality passion fruit seedlings depends on substrates with adequate physical and chemical characteristics. Therefore, this experiment was conducted to evaluate the effect of doses of ash from burning of sugarcane bagasse on improvement of traits of the substrate "gully soil". The experiment was set up in a greenhouse and arranged in randomized block design, in a 2x7x2 factorial scheme. The following factors and their respective levels were studied: (i) soil structure,- aggregating between 4 and 10 mm and <2 mm; (ii) ash doses - 0; 1.5; 3; 6; 12; 24; and 48 t ha-1; (iii) families of passion fruit - F29 and F48. The use of ash combined to the soil with structure <2mm significantly increased the production of shoot fresh mass and shoot dry mass for both families studied. The density of the substrate obtained by the mixture of ash and gully soil (soil) decreased as ash doses increased, regardless of the size of the aggregates and the family studied.

scholarly journals HISTOLOGICAL ANALYSIS AND PERFORMANCE OF SOUR PASSION FRUIT POPULATIONS UNDER DIFFERENT ROOTSTOCKS RESISTANT TO Fusarium spp

2018 ◽  
Vol 40 (1) ◽  
Author(s):  
Moisés Ambrósio ◽  
Willian Krause ◽  
Celice Alexandre Silva ◽  
Laís Alves Lage ◽  
Natan Ramos Cavalcante ◽  
...  
Keyword(s):  
Histological Analysis ◽  
Block Design ◽  
Welding Process ◽  
Anatomical Study ◽  
Optical Microscope ◽  
Passion Fruit ◽  
Randomized Block Design ◽  
Physical And Chemical ◽  
Sour Passion Fruit

ABSTRACT The present study aimed to describe histological traits of the graft welding process and evaluate the effect of rootstocks on the physical and chemical traits and the productivity of sour passion fruit populations. The experiment was arranged in a randomized block design, in a 4x2 + 4 factorial scheme (cultivars / canopy x rootstocks), three replicates and nine plants per plot. Commercial cultivars and populations and Passiflora alata and P. nitida rootstocks, in addition to ungrafted plants were used as canopy. Cleft grafting was the grafting type adopted. Traits analyzed such as productivity and physical and chemical quality of fruits were submitted to analysis of variance and compared by the Tukey test. The canopy morphology was evaluated according to descriptors of the Ministry of Agriculture, Livestock and Supply. Grafting was carried out for each graft/rootstock combination for histological analysis. Sections were obtained by freehand cuts, stained and mounted on semi-permanent slides, examined under optical microscope and photomicrographed. Rootstocks affected the early cultivation and reduced productivity and number of fruits of passion fruit populations. Grafting did not affect the quality of fruits or the canopy morphology. Considering the complete culture cycle, P. alata species is able to be used as rootstock. The anatomical study demonstrates the occurrence of better compatibility in the connection of P. edulis tissues on P. alata, compared to grafting on P. nitida.

scholarly journals Soybean oversowing with Urochloa brizantha and Panicum maximum and the straw formation in a no-tillage system

2016 ◽  
Vol 37 (3) ◽  
pp. 1209
Author(s):  
Núbia Maria Correia ◽  
Leonardo José Petean Gomes
Keyword(s):  
Mass Production ◽  
Block Design ◽  
Dry Mass ◽  
Development Stage ◽  
Panicum Maximum ◽  
Forage Crops ◽  
Randomized Block Design ◽  
Tillage System ◽  
Set Up ◽  
Urochloa Brizantha

The objective of this study was to evaluate the soybean oversowing with braquiarão (Urochloa brizantha cv. Marandu) and colonião (Panicum maximum cv. Aruana) and the capacity of these forage crops to produce dry mass during the fall-winter-spring period. Two experiments, one for each forage species, were conducted in field conditions in the 2011/2012 season and were repeated in 2012/2013. The experimental set-up was arranged in a randomized block design with four repetitions in a 2 x 5 factorial. The soybean oversowing was studied in the development stages R6 and R8 (2011/2012) or R5 and R8 (2012/2013) with braquiarão or colonião grass in five seed amounts (200, 400, 600, 800 and 1000 points of cultural value – PCV = seeds amount x culture value). In both seasons, the braquiarão oversowing at soybean stages R5 and R6 resulted in higher dry mass production, when compared to stage R8. Additionally, the amount of 600 seeds PCV was sufficient to obtain an excellent percentage of soil cover (&gt;95%), in addition to the satisfactory number of plants per m2 and the dry mass production. On the other hand, independent of the soybean development stage in the oversowing moment, colonião was not promising for use in this sowing type because its low stand and irregular soil covering, even at the higher seed amounts.

scholarly journals VEGETATIVE PROPAGATION OF HYMENAEA COURBARIL L. AND APULEIA LEIOCARPA (VOGEL) J. F. MACBR. BY MINI-CUTTING

2020 ◽  
Vol 44 ◽  
Author(s):  
Juliana Muller Freire ◽  
Letícia Nakamura Veríssimo ◽  
Beatriz Rodrigues Pereira ◽  
Janaína Ribeiro Costa Rouws ◽  
José Carlos Arthur Junior
Keyword(s):  
Vegetative Propagation ◽  
Block Design ◽  
Dry Mass ◽  
Root Number ◽  
Indolebutyric Acid ◽  
Hymenaea Courbaril ◽  
Randomized Block Design ◽  
Average Survival ◽  
Different Types ◽  
Set Up

ABSTRACT The objective of this work was to evaluate the vegetative propagation of Hymenaea courbaril (jatobá) and Apuleia leiocarpa (garapa) using the mini-cutting technique with the use of indolebutyric acid (IBA) growth regulator in different types of mini-cuttings. Two experiments were set up: the first involving the two species and three mini-cutting techniques (basal, intermediate and apical) in the presence and absence of IBA (4000 mg kg-1). In the second experiment, only the garapa species was evaluated by testing the same three mini-cutting techniques at four IBA concentrations: 0, 1000, 2000 and 4000 mg kg-1. The mini-cuttings were obtained from 6-month-old seedlings produced from seeds in a nursery. A randomized block design was used in a 3 x 2 x 3 factorial scheme (three mini-cutting techniques, two IBA concentration levels and three evaluation dates) in the first experiment, and a 3 x 4 x 3 factorial scheme (three mini-cutting techniques, four IBA concentrations and three evaluation dates) in the second experiment. At 90 days, jatobá had an average survival of 54%, with less than 5% of total rooting, without significant influence of the mini-cutting technique or IBA use. Garapa presented higher survival for the basal mini-cuttings in both experiments, which were the only ones that took root. IBA did not influence survival or rooting percentage of garapa mini-cuttings, but negatively influenced the root number, length and dry mass. We concluded that the basal mini-cutting is a viable technique for vegetative propagation of garapa, presenting 40% of rooting, but the propagation by mini-cutting for jatobá was not successful under the conditions of this study.

scholarly journals Morphophysiology and quality of yellow passion fruit seedlings submitted to inhibition of gibberellin biosynthesis

2021 ◽  
Vol 43 ◽  
pp. e51541
Author(s):  
Ednilson Carvalho Teixeira ◽  
Sylvana Naomi Matsumoto ◽  
André Felipe Fialho Ribeiro ◽  
Anselmo Eloy Silveira Viana ◽  
Cristiano Tagliaferre ◽  
...  
Keyword(s):  
Quality Index ◽  
Block Design ◽  
Dry Mass ◽  
Seedling Quality ◽  
Passion Fruit ◽  
Gibberellin Biosynthesis ◽  
Total Leaf Area ◽  
Randomized Block Design ◽  
Yellow Passion Fruit

The aim of this study was to verify if a growth reduction of yellow passion fruit seedlings’ growth morphophysiology and quality could be changed by paclobutrazol applied through seedling immersion. The experiment was conducted in a greenhouse, with seedlings grown in polyethylene tubes (290 cm3), with substrate. At 40 days after sowing, the seedlings were immersed in an aqueous solution of paclobutrazol at concentrations of 0, 50, 100, 150, and 200 mg L-1. The experiment was conducted in a randomized block design, with five treatments (paclobutrazol concentrations) and four replicates. At 15 and 30 days after treatment, growth characteristics were evaluated. At the end of the assay, destructive evaluations related to mass determination, total leaf area, and seedling quality index were performed. Paclobutrazol treatment induced restrictions in seedling growth, except for fresh and dry mass of root and total fresh mass. Based on these characteristics, the increase in values induced by paclobutrazol was verified. The seedling quality, defined by the major value of the Dickson quality index and a smaller robustness index, was higher when submitted to paclobutrazol treatment.

scholarly journals Competition of maize hybrids with alexandergrass (Urochloa plantaginea)

2019 ◽  
pp. 1447-1455
Author(s):  
Fernando Frandoloso ◽  
Leandro Galon ◽  
Ricardo Luis Gabiatti ◽  
Felipe Bianchessi ◽  
Cinthia Maethê Holz ◽  
...  
Keyword(s):  
Interspecific Competition ◽  
Block Design ◽  
Dry Mass ◽  
Separate Experiment ◽  
Experimental Unit ◽  
Replacement Series ◽  
Maize Hybrids ◽  
Randomized Block Design ◽  
Set Up ◽  
Sun Light

Maize is one of the world's major cereals, and alexandergrass is the most damaging weed in the crop. The objective of this work was to evaluate the relative competitive ability of maize hybrids in the presence of alexandergrass through replacement series experiments. The experiments were set up in a complete randomized block design, with four replications. Firstly, for the maize hybrids as well as for the alexandergrass, the plant population was determined in which the final production becomes constant. were composed of plastic pots with a capacity of 8 dm3, and in each experimental unit was placed in the proportion corresponding to each treatment (100: 00, 75:25, 50:50, 25:75 and 0: 100) in each experimental unit, the species competing or not between them. For each hybrid, a separate experiment was considered with the objective of evaluating intra and interspecific competition. The analysis of the competitiveness of the species was carried out through diagrams applied to the replacement experiments and by the relative competitiveness indexes. At 50 days after the emergence of the maize the leaf area (LA) and the dry mass of the aerial part (DM) of the plants were checked. The relative competition was occured among the weed and each maize hybrid, being negatively affected for both of species, independently of the proportion of weed causing reductions in LA and DM of the maize. Interspecific competition causes less damage to LA and DM of species than intraspecific competition. There is basically competition for the same environment resources (water, CO2, sun light and nutrients) between maize and alexandergrass, being the crop more competitive than the weed.

scholarly journals NITROGEN RATES ON GROWTH, YIELD AND NITRATE FOLIAR CONTENT OF ARUGULA

2021 ◽  
Vol 34 (2) ◽  
pp. 380-387
Author(s):  
PAULO HENRIQUE SOARES SILVA ◽  
ARTHUR BERNARDES CECÍLIO FILHO ◽  
ISAÍAS DOS SANTOS REIS ◽  
SÉRGIO MANUEL RUGELES REYES ◽  
MARA CRISTINA PÊSSOA DA CRUZ
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Dry Mass ◽  
Risk Level ◽  
Nitrate Content ◽  
Negative Effects ◽  
Growing Seasons ◽  
Randomized Block Design ◽  
Set Up ◽  
Leaf N

ABSTRACT Nitrogen is the second nutrient most demanded by arugula. However, the positive effect it has on yield can negatively impact the quality of this vegetable, with negative effects on human health. Two experiments (summer and autumn) were carried out to evaluate the effect of N rates (0, 50, 100, 150, 200 and 250 kg ha−1) on the arugula growth, yield and quality (nitrate content). Each experiment was set up in a randomized block design with four replications. Increasing rates of N reflected positively on leaf N content and thus, higher and desirable values of height, leaf number, leaf area and plant dry mass were obtained in both growing seasons. Consequently, the yield had significant increase, which N was maximized in summer (4.9 kg m−2) and autumn (2.6 kg m−2) and leaf N of 29.4 and 27.0 g kg−1, respectively, at rates of 250 and 213 kg ha−1 and both growing seasons. The higher rate the higher foliar nitrate content of arugula, in summer (2931.3 mg kg−1) and autumn (4218.4 mg kg−1). The foliar nitrate content in both crop season do not reach the risk level to human being heath.

scholarly journals GROWTH AND MINERAL COMPOSITION OF PAPAYA AND PASSION FRUIT SEEDLINGS IRRIGATED WITH GRAY WATER

2020 ◽  
Vol 33 (4) ◽  
pp. 1037-1048
Author(s):  
HERISON ALVES DE OLIVEIRA ◽  
RAFAEL OLIVEIRA BATISTA ◽  
FRANCISCO VANIES DA SILVA SÁ ◽  
NILDO DA SILVA DIAS ◽  
ANA KALINE DA COSTA FERREIRA
Keyword(s):  
Mineral Composition ◽  
Block Design ◽  
Dry Mass ◽  
Passion Fruit ◽  
Experimental Arrangement ◽  
Irrigated Agriculture ◽  
Gray Water ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Supply Water

ABSTRACT The semi-arid region has long periods of drought, so reusing water is an important alternative to enable irrigated agriculture. The objective of this study was to evaluate the growth and mineral composition of papaya and passion fruit seedlings irrigated with gray water effluents. Two experiments were carried out with papaya and passion fruit seedlings. For nondestructive analyses, the experimental arrangement was in splitplots in time, with plots consisting of three types of irrigation water (gray water effluent; supply water and mixture of gray water and supply water, at 1:1 ratio) and subplots formed by the evaluation times 30, 60 and 75 days after sowing, with three replicates and five plants per replicate. For destructive analyses, the experimental arrangement was a simple randomized block design, with three treatments, corresponding to the irrigation waters, with three replicates and five plants per replicate. The seedlings irrigated with gray water effluent had higher values of plant height, stem diameter, length of the largest root, shoot dry mass and root dry mass. N, K, Ca, Mg, Fe, Mn and Zn contents in the tissue of papaya seedlings, cv. ‘Golden’, were not altered by irrigation with gray water effluent. N, Fe and Zn contents in the tissue of passion fruit seedlings, cv. ‘Redondo Amarelo’, were increased by the application of gray water effluent, while P, K, Ca, Mg and Mn contents were not influenced.

scholarly journals Nitrogen and potassium supply and the morphogenic and productive characteristics of marandu palisadegrass

2010 ◽  
Vol 39 (8) ◽  
pp. 1666-1675 ◽  
Author(s):  
Marcio Mahmoud Megda ◽  
Francisco Antonio Monteiro
Keyword(s):  
Leaf Area ◽  
Dry Matter ◽  
System Development ◽  
Block Design ◽  
Dry Mass ◽  
Dry Matter Production ◽  
Root System Development ◽  
Randomized Block Design ◽  
Matter Production ◽  
Specific Length

The objective of this work was to study morphogenic characteristics, and dry matter production of roots and shoots of marandu palisadegrass (Brachiaria brizantha cv. Marandu) submitted to combinations of nitrogen and potassium, in a nutritive solution, employing silica as substrate. The experiment was carried out in a greenhouse during the summer. It was used a 5² fractionated factorial scheme with 13 combinations of nitrogen and potassium, which were distributed in a randomized block design, with four replications. The nitrogen × potassium interaction was significant for the number of tillers and leaves, for leaf area, for shoots and root section dry mass, for total length and surface and specific length and surface in the roots. Production of aerial part dry mass positively correlated with the number of tillers and leaves and grass leaf area. Nitrogen rates modulated the root system development, and the root specific length and surface decreased when high rates of nitrogen and potassium were supllied. Nitrogen and potassium influence Marandu palisadegrass morphogenic characteristics, which are determinant for grass dry matter production.

scholarly journals Agronomic performances of Pak Choi grown with different soil cover

2015 ◽  
Vol 33 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Márcia M Echer ◽  
Graciela M Dalastra ◽  
Tiago L Hachmann ◽  
Elcio S Klosowski ◽  
Vandeir F Guimarães
Keyword(s):  
Soil Cover ◽  
Block Design ◽  
Dry Weight ◽  
Bare Soil ◽  
Production Traits ◽  
Pak Choi ◽  
Randomized Block Design ◽  
Black Plastic ◽  
Growing Conditions ◽  
Set Up

An important aspect in the cultivation of vegetables is the quality of the product to be marketed, free from dirt and damage and the practice of mulching could be an option, but there is scarse information. The aim of this study was to evaluate the influence of mulching on the production traits of three cultivars of Pak Choi. The experiment was set up during March to May 2013 using a split plot randomized block design, with four replications. Soil cover treatments (white agrotextile, black agrotextile, black plastic, silver plastic, tifton straw and bare soil) were arranged in the plots, and three cultivars of Pak Choi (Green Pak Choi, White Pak Choi and Chingensai Natsu Shomi) in subplots. Height and diameter of shoots, number of leaves, fresh weight of the head and petiole, base diameter, dry weight of stem, petiole, and leaf were evaluated thirty-five days after transplantation. The total dry weight and leaf area were measured, and then we estimated the yield. There was a significant effect of soil cover and cultivar. In general, the cover with synthetic materials showed higher values on production of Pak Choi. The cultivar White Pak Choi was better adapted to the growing conditions, with an average yield of 57.78 t/ha.

scholarly journals MORPHOLOGICAL AND PRODUCTIVE CHARACTERIZATION OF FORAGE CACTUS VARIETIES

2015 ◽  
Vol 28 (3) ◽  
pp. 230-238 ◽  
Author(s):  
PHILIPE LIMA DE AMORIM ◽  
JANAINA AZEVEDO MARTUSCELLO ◽  
JOSÉ TEODORICO DE ARAÚJO FILHO ◽  
DANIEL DE NORONHA FIGUEIREDO VIEIRA DA CUNHA ◽  
LIANA JANK
Keyword(s):  
Block Design ◽  
Morphological Characteristics ◽  
Correlation Coefficients ◽  
Dry Mass ◽  
Negative Effects ◽  
Breeding Programs ◽  
Area Index ◽  
Promising Alternative ◽  
Randomized Block Design ◽  
Use Efficiency

ABSTRACT: Cultivars of the genus Nopalea are known in Brazil for being tolerant to cochineal carmine attacks, thus making the cultivation of this genus a promising alternative for mitigating the negative effects of this insect on the production of biomass. With the objectives of characterizing morphologically spineless forage cactus varieties and identify morphological characteristics that may be the focus in spineless forage cactus breeding programs, an experiment was conducted in a completely randomized block design with 11 treatments and four replications. The variety Alagoas showed the highest values of weight, area and volume of cladodes. The varieties Negro Michoacan F7 and V7, Tamazunchale V12 showed the highest values of the cladode area index, the total volume of cladodes and total fresh mass production. The varieties Negro Michoacan V7 and F7 presented the highest water use efficiency and dry mass yield. Cladode volume showed the highest correlation coefficients with the fresh weight of cladodes. Aiming the release of varieties for biomass production, varieties Negro Michoacan F7, V7 and Tamazunchale V12 may substitute the Miúda variety. The number and cladode area index may be used as criteria for selection of superior varieties in breeding programs.

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